Bluetooth 4.1 Headphone, iKross in-Ear Wireless Handsfree Headset Earpieces with Echo Cancellation Feature- Black for Apple iPhone Samsung LG Huawei Smartphone The iKross In-Ear Wireless Handsfree Headset features Bluetooth 4.1 and Boom Microphone for better signal and reliability. Get crisp and clear sound quality and long lasting battery life - up to 5 hours continuous talk time; 100 hours standby time. BETTER COMMUNICATION: Echo Cancellation for enhanced voice clarity. Convenient headset volume control, music pause/play buttons directly on the headset for ease of use and control without having to look at your phone screen. MULTI-DEVICE PAIRING: Connect Two Devices at The Same Time - Pair two Bluetooth-enabled devices at the same time and don't miss your calls when you have two cell phones! Perfect for keeping a work and personal line accessible while driving or engaging in activities. COMFORT WEAR: Lightweight and slim with three interchangeable sized ear cushion pieces for a custom fit and comfort wear. Designed for all day wear to suit business or casual users. Sweat-proof and easy to wipe clean. COMPATIBLE WITH: Apple iPhone X8, 8 Plus, 7, 7 Plus, 6, 6 Plus, iPhone SE, 5, 5s, iPad Pro, Samsung Galaxy S8+, S8, S7, S6, S6 Edge, Note 8, HTC ONE 9, LG G6, G5, G4, Motorola, Nokia, Sony, Blackberry Smartphone, Dell, Microsoft, HP, Asus, Acer, Lenovo Tablet and more